5. lng port terminal proposal for sites under study€¦ · access to the other mooring dolphins or...
TRANSCRIPT
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Gaz Metro – Enbridge – Gaz de France 24237 LNG receiving Terminal on the Saint-Laurent February 2004 Pre-Feasibility of the Jetty Component of the Project 5-1
5. LNG PORT TERMINAL PROPOSAL FOR SITES UNDER STUDY
5.1 LAYOUT PROPOSAL
A typical LNG receiving port terminal includes the following components:
• Four breasting dolphins, aligned over a total distance of approximately 150 m to form the
berthing station. These dolphins are equipped with fenders designed to withstand berthing
impacts;
• A central section housing the LNG unloading equipment. For safety reasons, this platform
is placed in a recessed position with respect to the berthing face in order to avoid any
impact from the ship;
• A total of six mooring dolphins, three units at each end of the berthing station, positioned
about 35 to 50 m behind the berth face alignment. This offset position results in smaller
vertical angles in the mooring lines and thus ensures better efficiency to maintain the ship
in a stable position during unloading operations.
Moreover, due to the particular ice conditions on the St. Lawrence river and based on Ultramar’s
excellent operating experience at the St. Romuald terminal for more than 30 years, it appears
essential to include in the facility two additional cells designed specifically for stabilizing the ice
cover and preventing floating ice floes from reaching the berthing area from upstream.
All dolphins, with the exception of the central platform, are equipped with “quick release” hooks
and capstans to ensure, on the one hand, very stable mooring of ships essential for the safety of
the LNG unloading operations, and, on the other hand, the capability of a quick departure from the
berth, in case of an emergency.
Figures 5.1 to 5.6 show specific layout proposals for each site under study. These proposals have
been developed taking into account the physical and hydrodynamic conditions described in a
previous chapter. For each site, the general location of the berth is superimposed onto the
bathymetric map (Figures 5.1, 5.3 and 5.5) and a general arrangement drawing (Figures 5.2, 5.4
and 5.6) presents in plan and in elevation, the main dimensions and technical features of the
proposed layout. A turning area (= 2 x ship length) and anchorage area are also shown at each
site.
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Gaz Metro – Enbridge – Gaz de France 24237 LNG receiving Terminal on the Saint-Laurent February 2004 Pre-Feasibility of the Jetty Component of the Project 5-2
Ville Guay Site
Accounting for the bathymetric conditions in the Ville Guay area, the berthing station is
established approximately 250 to 300 m away from the shoreline, near the 15 m isobath (this
corresponds to the water depth at mean lower low water, since it is referred to the chart datum).
This distance from the shoreline is about equal to that of the island surrounding the base of the
south tower of the high voltage power line crossing to Île d’Orléans, located a few kilometres
downstream from the dock. This is a reasonably favourable situation from a navigation standpoint:
on the one hand, the island, which is not too far offshore, does not obstruct the movement of the
incoming ship in its final approach; on the other hand, both structures, the dock and the island,
will contribute in stabilizing the edge of the shore-fast ice during the winter months, which will
therefore tend to be aligned with the isobath, and therefore not obstruct navigation.
Due to the probable nature and geotechnical properties of the overburden and bedrock on the river
bottom, dolphins consisting of concrete gravity caissons resting on a stone base placed and
levelled under water. The caissons are filled with quarry stones and/or gravely material and
topped with a concrete slab. It should be kept in mind that this interpretation of geotechnical
conditions rests on data obtained from locations several kilometres away from the site, and is
therefore rather unreliable. It will be of course essential, in the next phase of studies, to conduct
a suitable geotechnical reconnaissance program at the actual site of the project.
Access to the dock is ensured by means of a road supported on a rock fill jetty starting from the
shoreline about 100 m long, followed by a steel bridge supported on piers spaced at 75 m
intervals approximately. This bridge will be designed for a vehicle of the size of a pick-up truck and
permit access to the centre of the berth, where the LNG unloading arms are located. The bridge
will be about 3 m wide, and therefore restricted to one-way usage. Beyond the central portion,
access to the other mooring dolphins or ice protection dolphins, will be on foot only.
In Figure 5.2, the jetty is shown connected to the berth from the upstream side, in an L-shaped
configuration, although a T-shape, with the jetty connected directly to the centre of the berth, is
most common in LNG terminals. The choice of the final configuration should be validated in
subsequent phases of the design, based of functional requirements, access needs to each part of
the dock, ease of access for maintenance purposes, lay-down and pick-up areas for consumables,
components and spares, etc.
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Gaz Metro – Enbridge – Gaz de France 24237 LNG receiving Terminal on the Saint-Laurent February 2004 Pre-Feasibility of the Jetty Component of the Project 5-3
Pointe Saint-Denis
In this general vicinity of the coast, Rivière Ouelle was the first location to be considered, but it
was decided that this quiet coastal community was not suitable for an industrial development.
The focus was therefore moved several kilometres downstream to Pointe St. Denis, where there
are only a few houses.
The very wide coastal margin in this general area requires the establishment of a 3 km jetty in
order to reach the 15 m isobath. This situation is evidently most unfavourable from a construction
cost perspective, but it also creates a substantial interference to small craft navigation.
Remoteness from shore renders regular supply and maintenance operations much more difficult
and time-consuming. It also makes it more difficult to react quickly to emergency situations.
Given the extreme seismic exposure of the site (in fact one of the most seismically active zones in
Canada), the dolphins would likely have to be supported on steel piles to minimize the mass of the
structures. Based on geotechnical properties of the river bottom, penetration of the piles into the
riverbed would probably have to reach some 20 to 30 m. It is noted once again that geotechnical
assumptions are very uncertain, being based on extrapolation of a few borings taken from several
kilometres upstream, and also much closer to shore.
In this layout, as for the previous one, a part of the jetty would be built from rock fill extracted
from a near-by quarry, yet to be identified. Because of local eel fishing and small craft navigation,
it is likely that this solid jetty could only be acceptable for a short distance from shore. We have
assumed this to be about 300 m, which is only slightly longer than the existing jetty at Rivière
Ouelle. The rest of the road reaching out to the berth is a bridge resting on piers.
Gros Cacouna
At Gros Cacouna, the water depth increases very rapidly, reaching 15 m a few 200-250 m from
shore. This bathymetric condition is similar to that at Ville Guay.
The soil profile consists in a relatively soft layer near the surface, inadequate as a foundation
material, underlain by a much stiffer clay layer, which could support a gravity structure.
Therefore, concrete caissons of the type proposed for Ville Guay would be used here, but the soft
surface material would have to be removed first. It has been assumed, for developing the cost
estimate, that 5 to 10 m of material would have to be dredged. As before, this assumption will
need to be verified by a site-specific geotechnical reconnaissance program in due course.
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Gaz Metro – Enbridge – Gaz de France 24237 LNG receiving Terminal on the Saint-Laurent February 2004 Pre-Feasibility of the Jetty Component of the Project 5-4
Considering the uncertainty level of this pre-feasibility evaluation, an alternative scheme has also
been discussed briefly for the particular case of Gros Cacouna, for the eventuality of having to
provide a better sheltered berth in order to ensure safety of berthing / unberthing manoeuvres and
of unloading operations. This alternative layout would include:
- a rock breakwater 500 m long, parallel to the shoreline, to give protection against N-NW winds,
waves and ice,
- an open structure causeway built on piles, allowing tidal currents to flow through the berthing
area. In comparison with the actual layout shown on Figure 5.5, this proposal would require a 200
m seaward extension of the access bridge,
- as compared to the actual layout comprising 13 cells, this proposal would require 7 cells, the six
mooring cells being replaced by concrete bases embedded in the jetty,
- the width of the berthing area would be 5 times the ship breadth with a minimum water depth
of 13,4 m at tow tide (= 11,7 m draught + 15% underkeel clearance), allowing tugboats to
position themselves on the shore side of ship during berthing manoeuvres.
At this point, neither the necessity nor the effectiveness of this arrangement have been
demonstrated, its presentation aiming only at foreseeing sufficient budgetary provision on a
comparative basis with the other alternatives considered. The preliminary cost estimate presented
in Table 5.1 is based on this layout but more detailed engineering would be required at a later
stage of the project in order to establish its final validation.
5.2 AIR SPACE UNDER THE HIGH VOLTAGE POWER LINE AT VILLE GUAY
The Ville Guay site presents a particular situation due to the presence of a high voltage (735 kV)
power transmission line belonging to Hydro-Québec, crossing from the south shore to Île d’Orléans
over the navigation channel. This crossing is located approximately 1,3 kilometres downstream
from the proposed site for the LNG marine terminal. The central span of the crossing, between the
suspension towers, is 1 580 m long.
In general, LNG carriers have a much greater sail (but smaller draft) than other ships of similar
dimensions. Temperatures of the electric conductors and potential accumulations of ice have a
major effect on the sag of the conductors. Since a minimum distance must be maintained between
the conductor and the ship, access to the berth as a function of the loading of the power line and
the water level in the river becomes an issue to be examined.
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Gaz Metro – Enbridge – Gaz de France 24237 LNG receiving Terminal on the Saint-Laurent February 2004 Pre-Feasibility of the Jetty Component of the Project 5-5
The 2003 edition of the bathymetric chart published by the Canadian Hydrographic Service (CHS)
indicates that the vertical clearance available between the water at high tide (+5,7 m) and the
power line is 53 m in normal conditions, reducing to 44 m under “severe” icing. The chart does
not specify the frequency of occurrence of these conditions.
It is noted that the clearances mentioned above provide a residual air gap of 6.4 m between the
obstacle and the conductor, a safety margin required to avoid formation of an electric arc from the
735 kV line. In other words, the clearance corresponds to the maximum allowable height of any
part of the ship above the water line, i.e. the sail height.
The restrictions mentioned above correspond to the centre of the span, where the sag is
maximum. This is also close to the middle of the river. The pilots of the Lower St. Lawrence have
confirmed that they navigate in a corridor offset towards the south shore or the north shore when
required, which allows them to gain additional air space as they pass closer to the suspension
tower, away from the centre of the span. This trajectory would be natural for LNG carriers
approaching the dock on the north shore before initiating the turning manoeuvre in front of the
berth. Considering also that these vessels have a relatively small draft, the water depth would
pose less of a constraint than for other major ships.
Figure 5.7 illustrates that there may be a corridor in the center of the river unaccessible to some
LNG carriers. The most constraining situations occur with the highest ships passing under the
power lines at high tide in ballasted conditions. This issue will have to be addressed carefully in
the next stage of the project assessment. At this point, considering that very high cruise ships
have already crossed under the power lines it is believed that it should not be a major constraint to
this project but this has to be ascertained.
5.3 CAPITAL COST OF PORT INFRASTRUCTURE (CAPEX)
Table 5.1 presents preliminary cost estimates for the port infrastructure at each of the sites, based
on the available information and assumptions described hereabove. Given the uncertainties on
some of the data, particularly on the topographical, bathymetric and geotechnical conditions,
these budgetary provisions require a contingency margin of 25% of the total estimate.
For Ville Guay and Gros Cacouna (without breakwater), the construction costs may be considered
to be about equivalent, to the degree of accuracy currently possible. The marginally higher cost at
Gros Cacouna is attributable primarily to the seismic conditions, which are more severe than at
Ville Guay.
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Gaz Metro – Enbridge – Gaz de France 24237 LNG receiving Terminal on the Saint-Laurent February 2004 Pre-Feasibility of the Jetty Component of the Project 5-6
The Gros Cacouna alternative layout comprising a rock breakwater would represent a construction
cost some $ 35 millions higher than the base solution. As mentioned previously, the necessity of
such a sheltered berthing station has not been proved at this point, considering the present level
of knowledge and understanding of the climatic and hydrodynamic conditions at the site.
Pointe St. Denis appears to be clearly disadvantaged due to the high seismicity, and the great
length of the jetty required to attain an appropriate water depth of 15 m. Construction costs at
Pointe St. Denis are more than double those at the other sites. An alternative for reducing costs
would be to move the berth closer to shore and to dredge a suitable area on front of the berth.
However, a cursory examination of this option indicates that the initial dredging quantities would
be on the order 6 to 8 million m3 , if a 50% reduction of the distance offshore is considered. This
still leaves a long jetty of 1.5 km. Moreover, it is certain that regular maintenance dredging would
be required to compensate the effect of the littoral sediment transport, which would tend to fill
the artificial channel, although at a rate which cannot be predicted without further analysis and
modeling. Based on past experience with various dredging projects in various locations of the St.
Lawrence, this approach does not appear viable from an environmental standpoint, due to the
huge quantity involved initially as well as the repeated maintenance interventions most likely to be
required. Moreover, this approach does not appear to have any evident economic advantage
either, since initial dredging costs, estimated at $4/m3, are in the range of $24M to $32M
whereas the infrastructure construction cost reduction should be in the range of $ 15 millions
(Ref: Table 5.1: the cost reduction would affect item 5 – Bridges and gangways by 50%
approximately, i.e 1,5 km vs 3 km).
The cost estimate shown in Table 5.1 is in Canadian dollars, as of November 2003. The following
items are not included:
Pipelines and related equipment,
Access roads (Ville Guay and Pointe-Saint-Denis),
Power supply (from Hydro-Quebec network),
Potable water (from municipal network),
Cost escalation,
Land acquisition,
Owner’s costs,
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Gaz Metro – Enbridge – Gaz de France 24237 LNG receiving Terminal on the Saint-Laurent February 2004 Pre-Feasibility of the Jetty Component of the Project 5-7
Operational costs,
PST and GST.
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Table 5.1 - Preliminary Construction Cost Estimate (CAPEX)
Description
Ville GuayPointe
Saint-Denis Gros-Cacouna Gros-Cacouna
with breakwater
1 Worksite Organization $ 3 500 $ 9 000 $ 4 000 $ 5 000
2
Dolphins - Concrete circular cells (incl. Reinforced concrete, towing and placement, foundation, backfilling) $ 29 000 --- $ 35 000 $ 24 000
3Dolphins - Concrete decked platforms on steel piles --- $ 57 000 --- ---
4 Bridges and Gangways $ 2 800 $ 32 000 $ 2 500 $ 14 000
5 Access Jetty and Breakwater $ 2 300 $ 2 200 $ 900 $ 25 000
6Berthing and Mooring Equipment (Bollards, Capstans, Fenders) $ 1 200 $ 1 200 $ 1 200 $ 1 200
7
Electricity and Mechanics (On-Site Distribution Networks - Power, lighting, water, fire protection) $ 350 $ 800 $ 300 $ 1 000
8 Contingencies (25 %) $ 9 800 $ 25 600 $ 11 000 $ 17 000
Total Construction Cost $ 48 950 $ 127 800 $ 54 900 $ 87 200
Engineering and technical studies,
Site surveys (topo-bathymetry, geotechnics),Environmental studies, including public hearings (BAPE),
Work supervision $ 3 750 $ 7 000 $ 4 000 $ 5 000
Total Project Cost $ 52 700 $ 134 800 $ 58 900 $ 92 200
Not included in the cost estimates:
Pipelines and related equipmentAccess roads (Ville Guay and Pointe St. Denis)Power supply (from Hydro-Quebec network)Potable water (from municipal network)Cost escalationLand acquisitionOwner's costsOperational costs (OPEX)PST and GST
Gaz Metro – Enbridge – Gaz de France
24237 LNG receiving Terminal on the Saint-Laurent
February 2004 Pre-Feasibility of the Jetty Component of the Project
Total Cost ( x $ 1 000 CAN)
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Gaz Metro – Enbridge – Gaz de France 24237 LNG receiving Terminal on the Saint-Laurent February 2004 Pre-Feasibility of the Jetty Component of the Project 5-9
5.4 OPTIMIZATION OF PORT INFRASTRUCTURE DESIGN
It must be emphasized that the general arrangements of the port facilities presented above and the
corresponding cost estimates require further optimization. We believe reasonably conservative
assumptions have been used and therefore, we would expect that further refinements in the data
and in the design could possibly entail significant reductions to the construction budget.
At the client’s request, layout proposals have been developed largely inspired by existing LNG
terminal facilities in Europe, where the number of distinct berthing and mooring dolphins is
typically four (4) and six (6) respectively, added to an independent central unloading platform for
the process equipment, as discussed in section 5.1. In general, mooring dolphins, which are
recessed behind the berthing face, do not have to be designed for the ship berthing impact forces,
which allows their size and cost to be substantially reduced, compared to the berthing dolphins.
In this case, the particular ice conditions along the St. Lawrence River, which are not in common
with any other LNG terminal, require at least two additional protective cells upstream from the
berth, to help stabilize the land-fast ice, and reduce or eliminate impacts from floating ice. Such
protective cells have been constructed in the early seventies at the Ultramar’s marine terminal,
which has been operated successfully for the least 30 years. Because of the presence of ice, all
dolphins must be designed to withstand large horizontal loads, which are much larger than the
berthing loads. For Ville Guay, lateral ice loads are similar to earthquake loads, and earthquake
governs at Gros Cacouna. Therefore all dolphins at a given site are subjected to lateral loads of a
similar magnitude, and are therefore of a similar size.
The number and position of mooring dolphins must be determined primarily to provide a very rigid
attachment of the ship so that it has a highly stable berthing position in the longitudinal direction.
However, because of the large diameter of the cells in this case, it appears feasible to use each
cell more effectively by increasing the number of moorings attached to each, for example to have
two (2) « Quick Release » hooks placed side by side on a cell, rather than a single one in the
centre. Further study of the mooring strategy should be conducted in a subsequent phase of the
project, and this could lead to a reduction in the number of dolphins, and therefore a significant
reduction in costs. This work will be based on the recommendations of the Oil Companies
International Marine Forum (OCIMF, 1977).
Further study of the berthing arrangement may also lead to a reduction of the number of cells,
from two (2) to one (1) on each side of the central unloading platform.
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Gaz Metro – Enbridge – Gaz de France 24237 LNG receiving Terminal on the Saint-Laurent February 2004 Pre-Feasibility of the Jetty Component of the Project 5-10
The various conceptual schemes presented in Figure 5.8 help visualize this discussion. Scheme A
incorporates thirteen (13) dolphins. Notwithstanding the two (2) additional ice dolphins, which are
deemed necessary along the St. Lawrence, the eleven (11) berthing and mooring cells are standard
for an LNG terminal.
Scheme D shows the layout at the Ultramar terminal, which includes a total of eight (8) cells,
including the ice dolphins. It should be noted that this terminal is designed for the simultaneous
presence of ships on both sides of the dock, with the inside position being restricted to smaller
vessels. This is why the downstream mooring cells have to be aligned along the berthing face.
Schemes B and C correspond to intermediate solutions, where mooring cell or breasting cells are
combined as explained earlier. Cost vary substantially amongst the various solutions: the
differential can be estimated roughly from the different number of cells, each costing
approximately $ 2,5 M.
5.5 OPERATIONAL EXPENDITURES (OPEX)
5.5.1 Pilotage
The pilotage charges are established as a function of ship dimensions (length, beam, height,
tonnage) and also according to the services rendered. Typical services listed in the Laurentian
Pilotage Authority’s (LPA) price list include (Ref: Canada Gazette Part II, Vol. 137, No.1):
• Trip
• Movage
• Anchorage during a trip or a movage
• Docking of a ship at a wharf or pier at the end of a trip
• Request by a master. owner or agent of a ship for a pilot designated by the Corporation to
perform a docking or undocking
• Detention of a pilot at a pilot boarding station or on board ship
• Ship movements required for adjusting compasses
• Pilot carried on a ship beyond the district for which the pilot is licensed.
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Gaz Metro – Enbridge – Gaz de France 24237 LNG receiving Terminal on the Saint-Laurent February 2004 Pre-Feasibility of the Jetty Component of the Project 5-11
For a typical LNG carrier ship, preliminary pilotage cost simulations obtained from LPA give the
following estimates (CAN dollars 2003, excluding applicable taxes), based on the assumptions
listed hereafter:
• 2 pilots on board
• Intervention of a docking pilot for docking-undocking manoeuvres
• No detention on board during unloading operations
• Frequency of trips: 1 / week or 52 per year
Pilotage Cost per Trip / Annual
( x 1000 CAN dollars 2003, excluding applicable taxes)
SITE
Ville-Guay
Pointe-Saint-Denis
Cacouna
Summer period
(35 weeks / year)
51
43
42
Winter period
(17 weeks / year)
56
45
44
Annual (rounded)
2 740 2 270 2 220
The higher cost expected during winter period is due essentially to delays related to adverse
weather conditions. Based on past experience, it is assumed that the cost increase with respect to
summer cost would be 5 – 10%.
5.5.2 Tugboating
The tugboating cost can be evaluated on the basis of official rates published by the Shipping
Federation of Canada (SFC) or using effective costs applied by Ocean Group, a private marine
operator based in the Port of Quebec, and primary supplier of tug services in the St. Lawrence
estuary and river. These rates are established as a function of the ship’s gross registered tonnage
(GRT). For the purpose of the current pre-feasibility evaluation, a value of 96 000 GRT (provided
by the Client) has been considered as representative of most LNG ships considered in this project:
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Gaz Metro – Enbridge – Gaz de France 24237 LNG receiving Terminal on the Saint-Laurent February 2004 Pre-Feasibility of the Jetty Component of the Project 5-12
GRT Rate
Up to 50 000 $ 4 670.
Over 50 000 $ 34. / 1 000 ton GRT
Hourly rate for assisting a ship:
- staying aside, pushing $ 1 250 / hr
- removing ice $ 900 / 30 min
Waiting time $ 500 / hr
Travel time $ 850 / hr
Notes: (1) All the above rates are “summer” rates and are to be doubled during winter
period (except cost for “removing ice”). The winter season is a fixed period, from
7 Dec to 7 April (17 weeks).
Travel rate not applicable within the Port of Quebec limits.
PST and GST not included.
Based on the following conservative assumptions, the tugboating costs can be calculated from
the above rates:
GRT of a typical LNG carrier ship: 96 000 tons
Travel time (one way): Pointe-Saint-Denis: 5 hrs
Gros Cacouna: 8 hrs
Number of tugboats required berthing: 4
: unberthing: 3
Assisting during LNG unloading: 1 (**)
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Gaz Metro – Enbridge – Gaz de France 24237 LNG receiving Terminal on the Saint-Laurent February 2004 Pre-Feasibility of the Jetty Component of the Project 5-13
(**) It is assumed that each ship requires partial assistance from one tugboat, either for
removing ice for 30 minutes or for pushing for 1 hr. Cost for this assistance (rounded): $ 1 000
Duration of unloading operations: 12 hrs
Frequency of LNG ships at terminal: 1 / week or 52 / year
Ville Guay:
Berthing / Unberthing:
Berthing: $ 4 670 + $ 34. x 46 = $ 6 234 / un. (summer)
X 4 tugboats = $ 25 000
Unberthing: x 3 tugboats = $ 19 000
Pushing / removing ice: $ 1 000
Cost / ship: $ 45 000 (summer)
$ 90 000 ( winter)
Annual cost: $ 90 000 x 17 weeks = $ 1 530 000 (winter)
+ $ 45 000 x 35 weeks = $ 1 575 000 (summer)
Total (rounded) = $ 3 100 000
Pointe-Saint-Denis :
Travel (Quebec – Pointe-Saint-Denis – Quebec):
4 tugboats x (2 x 5 hrs) x $ 850 / hr = $ 34 000 (summer)
= $ 68 000 (winter)
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Gaz Metro – Enbridge – Gaz de France 24237 LNG receiving Terminal on the Saint-Laurent February 2004 Pre-Feasibility of the Jetty Component of the Project 5-14
Berthing / Unberthing:
Berthing: $ 4 670 + $ 34. x 46 = $ 6 234 / un. (summer)
X 4 tugboats = $ 25 000
Unberthing: x 3 tugboats = $ 19 000
Pushing / removing ice: $ 1 000
Cost / ship: $ 45 000 (summer)
$ 90 000 ( winter)
Waiting time: 3 tugboats x 12 hrs x $ 500 = $ 18 000. (summer)
= $ 36 000. (winter)
Total cost / ship $ 34 000 + $ 45 000 + $ 18 000 = $ 97 000 (summer)
= $ 194 000 (winter)
Annual cost: $ 194 000 x 17 weeks = $ 3 298 000 (winter)
+ $ 97 000 x 35 weeks = $ 3 395 000 (summer)
Total (rounded) = $ 6 690 000
Gros-Cacouna :
Travel (Quebec – Gros Cacouna – Quebec):
4 tugboats x (2 x 8 hrs) x $ 850 / hr = $ 54 000 (summer)
= $ 108 000 (winter)
Berthing / Unberthing:
Berthing: $ 4 670 + $ 34. x 46 = $ 6 234 / un. (summer)
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Gaz Metro – Enbridge – Gaz de France 24237 LNG receiving Terminal on the Saint-Laurent February 2004 Pre-Feasibility of the Jetty Component of the Project 5-15
X 4 tugboats = $ 25 000
Unberthing: x 3 tugboats = $ 19 000
Pushing / removing ice: $ 1 000
Cost / ship: $ 45 000 (summer)
$ 90 000 ( winter)
Waiting time: 3 tugboats x 12 hrs x $ 500 = $ 18 000. (summer)
= $ 36 000. (winter)
Total cost / ship $ 54 000 + $ 45 000 + $ 18 000 = $ 117 000 (summer)
= $ 234 000 (winter)
Annual cost: $ 234 000 x 17 weeks = $ 3 978 000 (winter)
+ $ 117 000 x 35 weeks = $ 4 095 000 (summer)
Total (rounded) = $ 8 075 000
5.5.3 Icebreaking
The information about the icebreaking fee charged by the Government of Canada can be found on
the Canadian Coast Guard web site, at:
http://www.ccg-gcc.gc.ca/msf-dsm/news/ISFDec98FEEschedule_e.htm
The fee payable by a ship for each transit to or from a Canadian port located in the ice zone within
the ice season dates prescribed is $3,100, for a maximum of 8 times per ship during each ice
season. For the purpose of this regulation, the three sites under study are included in Area 2 (St.
Lawrence River) for which the ice season extends from December 21 to April 15 of each year.
A fee reduction may apply where a ship has submitted documentation satisfactory to the Minister
demonstrating that it is classified as Arctic Class or Canada Type, or as an international equivalent
to Canada Type:
(a) Arctic Class or Canada Type A or Canada Type B or an international equivalent to
Canada Type A or B: = 35% reduction;
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Gaz Metro – Enbridge – Gaz de France 24237 LNG receiving Terminal on the Saint-Laurent February 2004 Pre-Feasibility of the Jetty Component of the Project 5-16
(b) Canada Type C or international equivalent to Canada Type C: = 25% reduction;
(c) Canada Type D or international equivalent to Canada Type D: = 15% reduction.
Considering, as a preliminary assumption, that no fee reduction would apply to the LNG carrier
ships (this would have to be verified by ship certification officers), the total annual cost to be
incurred in the project would reach the maximum stated in this regulation, no matter which one of
the three sites under consideration would be selected: $ 3 100. x 8 = $ 25 000.
5.5.4 Dredging
This fee applies only to ships having to pass in the North Channel at the east end of Orleans
island.
Therefore, this cost would not apply to Pointe-Saint-Denis or Gros Cacouna sites.
Based on Transport-Canada rates, the estimated annual cost is:
Ville Guay: $ 0.037 x 96 000 GRT = $ 3 552 / passage
Annual cost : $ 3 552 x 52 trips x 2 passages = $ 370 000
There is no cap applicable to this fee.
5.5.5 Marine Navigation Services
The information about the marine navigation services provided by the Government of Canada can
be found on the Canadian Coast Guard web site, at:
http://www.ccg-gcc.gc.ca/msf-dsm/archive/oct98/Oct98FEEschedule_e.htm
The navigation services include the provision and maintenance of buoys, beacons, lighthouses,
LORAN-C, racons or other devices, structures and facilities, for the purpose of assisting the
navigation of ships. It also covers vessel traffic services and information provided by Canadian
Coast Guard marine communications and traffic services centres.
The fee payable, for marine navigation services, by a non-Canadian ship whose principal purpose
is the transportation of goods or merchandise, that is loading or unloading cargo at a Canadian
port is, for cargo that is unloaded, the amount obtained by multiplying the weight in tonnes of the
cargo that is unloaded, to a maximum of 50,000 tonnes, by $0.152, in the Laurentian and Central
Region (The St. Lawrence River is part of the Laurentian Region). This fee is payable for each
entry into Canadian waters, to a maximum of 12 times per 12-month period.
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Gaz Metro – Enbridge – Gaz de France 24237 LNG receiving Terminal on the Saint-Laurent February 2004 Pre-Feasibility of the Jetty Component of the Project 5-17
The quarterly fee payable, for marine navigation services, by a Canadian ship that is operating in
Canadian waters in the Maritimes Region, Newfoundland Region or Laurentian and Central Region
is the amount obtained by multiplying the gross tonnage of that ship, to a maximum of 50,000
gross tons, by $1.14.
The application of this regulation, assuming LNG carriers would not be Canadian vessels, results in
the following annual charges:
For a non-Canadian vessel: 50 000 t x $ 0.152 x 12 times = $ 91 000.
5.5.6 Regular operation of the terminal
From previous discussions with the Client and the consultant responsible for the on-land facility
development during the course of this mandate, we understand that the regular operation of the
LNG unloading equipment located on the maritime terminal (connecting pipelines to ship, opening
or closing valves, etc) is included in the overall terminal operation budget. Therefore, no specific
budget provision is included in the current estimate.
However, on-dock services will have to be provided to assist ships at the berth upon arrival and
departure, to tie / untie mooring lines, install / remove gangways, etc. According to the official
rates published by the Canadian Shipping Federation, the cost of a team of linesmen (4 persons) is
$ 2000 per ship call. Assuming weekly LNG deliveries, this cost would total approximately $ 100
000 annually; it would be similar for the three potential sites.
5.5.7 Maintenance and repair of maritime infrastructure
Although a maritime infrastructure is heavy work and usually does not require yearly maintenance,
it is submitted to severe conditions such as waves, salt water, freeze–thaw, impacts from ships,
etc. Therefore, it may require important repair interventions after a service period of many years
(10, 15, 20 years). Some minor maintenance interventions may also be required more frequently
(snow removal. Seasonal installation (spring) and removal (winter) of fenders, painting of bollards
and steel structures, local minor deteriorations, asphalt repair, replacement of mooring equipment
parts,…). It is therefore common practice to include a repair and maintenance budget representing
1 to 2 % of the capital cost in the regular operation budget. In this case, this would represent an
annual budget of (assuming 1,5%): Ville Guay: $ 730 K; Pointe saint-Denis: $ 1,9 M; Gros
Cacouna: $ 825 K.
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Gaz Metro – Enbridge – Gaz de France 24237 LNG receiving Terminal on the Saint-Laurent February 2004 Pre-Feasibility of the Jetty Component of the Project 5-18
5.5.8 Summary of Operational Expenditures (OPEX)
Table 5.2 summarizes all annual operational costs described before.
Table 5.2 - Summary of Annual Operational Expenditures related to
Navigation Activities on the Saint Lawrence
Annual Operational Expenditures (OPEX)
( x 1000 CAN dollars 2003, excluding applicable taxes)
Site
Ville-Guay Pointe
Saint-Denis
Cacouna
Pilotage 2 740 2 270 2 220
Tugboating
- Travel
- Berthing / Unberthing
- Pushing / removing ice
- Waiting
---
3 045
55
---
2 350
3 045
55
1 240
3 725
3 045
55
1 250
Icebreaking 25 25 25
Dredging 370 --- ---
Marine Navigation Services 91 91 91
Regular operation of terminal 100 100 100
Repair and Maintenance (1,5%) 730 1 900 825
TOTAL (rounded) $ 7 200 $ 11 100 $ 11 300
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4. ENVIRONMENTAL CONSIDERATIONS5. LNG PORT TERMINAL PROPOSAL FOR SITES UNDER STUDY6. COMPARATIVE ANALYSIS OF THE THREE PROPOSED SITES